Books by publisher

The library keeps a catalogue of books in book_catalogue. Given the name of a publisher, list every catalogued book published by that publisher.

The input file publisher.txt holds a single publisher name (exactly as stored in book_catalogue.publisher).

Output one row per book with these columns in this order, separated by a single space:

1. title
2. year

Order the rows by year (ascending), then by title (ascending), then by ISBN_no (ascending) to break ties. Print one row per line.

Note: Do not hard-code the database name — your program is run against a different database instance for evaluation. The input file is in the same folder as your program.

For the database connection, use these variables:

database = sys.argv[1]   # database name, from the command line
user     = os.environ.get('PGUSER')
password = os.environ.get('PGPASSWORD')
host     = os.environ.get('PGHOST')
port     = os.environ.get('PGPORT')

The input is a file named publisher.txt in the same folder — A single publisher name, e.g. "McGraw Hill"..

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Database: LIS

−+Fit
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